方法：通过不同制备方法莱菔子供试样品hplc图谱的比较和相似度计算，分析其成分群的变化规律。
Methods: By comparing HPLC maps of Semen Raphani samples prepared with different methods and computing similarity, (analysis) the change law of the components group.
所有稳定性测定应使用一系列的由新制备的适当的无分析物，无干扰的生物基质储备溶液制备的样品。
All stability determinations should use a set of samples prepared from a freshly made stock solution of the analyte in the appropriate analyte-free, interference-free biological matrix.
在相态的提取过程中，如果做平行样品分析的话一个样品至少要制备八份溶液，工作量很大。
During the extracting of the phase, to carry out parallel samples analysis, one sample will prepare eight solution at least and large work.
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